Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevA.81.062116
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dc.titleJoint measurement of two unsharp observables of a qubit
dc.contributor.authorYu, S.
dc.contributor.authorLiu, N.-L.
dc.contributor.authorLi, L.
dc.contributor.authorOh, C.H.
dc.date.accessioned2014-05-19T02:52:58Z
dc.date.available2014-05-19T02:52:58Z
dc.date.issued2010-06-14
dc.identifier.citationYu, S., Liu, N.-L., Li, L., Oh, C.H. (2010-06-14). Joint measurement of two unsharp observables of a qubit. Physical Review A - Atomic, Molecular, and Optical Physics 81 (6) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.81.062116
dc.identifier.issn10502947
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/53007
dc.description.abstractWe derive a single inequality as the sufficient and necessary condition for two unsharp observables of a two-level system to be jointly measurable in a single apparatus and construct explicitly the joint observables of two jointly measurable observables. By introducing a generalized distinguishability as a measure of the unsharpness of an unsharp measurement, we derive a complementarity inequality, which generalizes Englert's duality inequality, from the condition of joint measurement of two orthogonal unsharp observables. © 2010 The American Physical Society.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1103/PhysRevA.81.062116
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentCENTRE FOR QUANTUM TECHNOLOGIES
dc.contributor.departmentPHYSICS
dc.description.doi10.1103/PhysRevA.81.062116
dc.description.sourcetitlePhysical Review A - Atomic, Molecular, and Optical Physics
dc.description.volume81
dc.description.issue6
dc.description.page-
dc.description.codenPLRAA
dc.identifier.isiut000278719000003
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